This prototype is composed of two parts, one printed with ninjaflex and another one with PLA (blue).The rigid piece is the piece that connects the spikes and it's sewn to fabric, on that way we can detach the spikes to place LED's or to exchange different shapes. You can see in the photos bellow how flexible is the surface that we can create with different configurations of these spikes.

And this is how it looks when they are attached to the fabric arm band.